During demonstration mode, press Select(32) to add to the "Credits" total in the bottom right corner of the screen. Now the number "32" should be displayed at this time. Hold Select and press Start to begin the game in turbo mode.

Hard difficulty level (Galaxian)

Beat level 9. Then during the next demonstration mode, press Triangle. Then on the options screen, a "Rank" selection will now be available. Select this choice to access the new "Hard" setting.

Color trail mode (Galaxian)

Obtain a high score of at least 30,000 points. Then during the next demonstration mode, press Triangle. Now highlight the "Test" option and press X. Highlight the "Dip Sw" option and press X. Press Up to enable switch 6. The game will now begin with all ships leaving colored trails.

Alternate tracks (Pole Position 2)

Press Triangle to display the options menu. Then, select "Test" and press Triangle when the "Test" screen appears. Now select "Dip Sw" to display the DIP switch screen. Press Up to enable switch 1 in the left box. Return to the options screen and select the "Game" option. Press Triangle after the game loads and select the new "Course" option. All four tracks will now have a new layout. Note: The "Test" track is now a straightaway.

Bonus machine (The Tower Of Druaga)

In the Museum, hold L1 + R1 and press Up, Right, Down, Left, Up, Right, Down, Left, Up, Right, Down, Left. If you entered the code correctly, a pickaxe symbol will appear in the bottom left corner of the screen. Now move forward in the Tower Of Druaga area of the museum until a brick wall appears. Press X to open the wall to reveal another Tower Of Druaga machine and an FMV sequence related to the game.